Question

В младшей группе спортивной школы по плаванию занимается 10 мальчиков, рост которых (в см) соответственно равен:128, 128, 129, 130, 130, 132, 135, 135, 137, 142 Сколько мальчиков выше среднего роста этой группы?а. 2б. 4в. 5г. 6помогите пожалуйста)

Answer 1

Средний рост: (128*2)+129+(130*2)+132+(135*2)+137+142=132,6
Следовательно средний рост составляется 133 см, а значит 4 мальчика выше среднего роста
Итак, ответ:б)4

Answer 2

Наверное ,, а )2...!

Answer 3

Calculation of Average Height

To determine the number of boys above the average height in the group, we first need to calculate the average height of the boys in the group.

The heights of the boys in the group are as follows: 128 cm, 128 cm, 129 cm, 130 cm, 130 cm, 132 cm, 135 cm, 135 cm, 137 cm, and 142 cm.

To calculate the average height, we sum up all the heights and divide by the total number of boys in the group:

(128 + 128 + 129 + 130 + 130 + 132 + 135 + 135 + 137 + 142) / 10 = 133.6 cm

Therefore, the average height of the boys in the group is approximately 133.6 cm.

Number of Boys Above Average Height

Now that we have calculated the average height, we can determine the number of boys above the average height.

The boys with heights above the average height of 133.6 cm are: 135 cm, 135 cm, 137 cm, and 142 cm.

Therefore, there are 4 boys in the group who are above the average height.

The correct answer is б. 4 boys.

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